"","INCOME","sex","Freq"
"1",1,1,67793
"2",1,2,85786
"3",2,1,73661
"4",2,2,93579
"5",3,1,94559
"6",3,2,103256
"7",4,1,99899
"8",4,2,98130
"9",5,1,98657
"10",5,2,97699
"11",6,1,103272
"12",6,2,96383
"13",7,1,592620
"14",7,2,546753